REPORT ON THE TUNICATA. 287 



Clyde district, and in the Sound of Mull. The Isle of Man 

 specimens were found on the shore at Port Erin, and at 

 Bay-ny-Carrickey, near Port St. Mary. 



Botrylliis schlosseri, Pallas. 

 This species is not uncommon on the shores of the south 

 end of the Isle of Man. It was taken at Port Erin and at 

 Bay-ny-Carrickey, attached to FucuSf and under stones near 

 low water mark, and in tidal pools. 



Botrylliis yemmeus^ Savigny. 

 Recorded by Forbes {Brit. Moll.) as having been found 

 by himself at Ballaugh, Isle of Man, adhering to stones at 

 low water. 



Botrylliis pruinosus, Giard (?). 

 A few colonies obtained under stones, near low water 

 mark, at Port Erin and Bay-ny-Carrickey, may possibly 

 belong to this species ; but, in the absence of any anatomical 

 characters in Giard' s description, it is impossible to settle 

 the question definitely. 



Botrylloides rubrtim, Milne-Edwards. 

 This species is common around the south end of the Isle 

 of Man. It was found in deep water by dredging oif Spanish 

 Head, attached to Algae and Zoophytes, and also on the 

 shore, attached to Algge, etc., at Port Erin, and at Bay-ny- 

 Carrickey. It was also collected at Penmaenmawr, by Mr. 

 Thompson, in July. 



The Manx specimens show great variation in colour and 

 in the size, both of the systems and also of the Ascidiozooids. 

 The colour most commonly seen is a brilliant scarlet, but 

 yellow tints are also found. 



Botrylloides albicans^ Milne-Edwards. 

 A pure white Botrylloides, several specimens of which 

 were found at the Isle of Man, appears to belong to 



